int extra_bits;
int and, or, shift;
int post_shift;
- int hybrid, hybrid_bitrate;
+ int hybrid, hybrid_bitrate, hybrid_maxclip;
int float_flag;
int float_shift;
int float_max_exp;
*crc = *crc * 9 + (S&0xffff) * 3 + ((unsigned)S>>16);
}
}
+
bit = (S & s->and) | s->or;
- return (((S + bit) << s->shift) - bit) << s->post_shift;
+ bit = (((S + bit) << s->shift) - bit);
+
+ if(s->hybrid)
+ bit = av_clip(bit, -s->hybrid_maxclip, s->hybrid_maxclip - 1);
+
+ return bit << s->post_shift;
}
static float wv_get_value_float(WavpackFrameContext *s, uint32_t *crc, int S)
s->joint = s->frame_flags & WV_JOINT_STEREO;
s->hybrid = s->frame_flags & WV_HYBRID_MODE;
s->hybrid_bitrate = s->frame_flags & WV_HYBRID_BITRATE;
+ s->hybrid_maxclip = 1 << ((((s->frame_flags & 0x03) + 1) << 3) - 1);
s->post_shift = 8 * (bpp-1-(s->frame_flags&0x03)) + ((s->frame_flags >> 13) & 0x1f);
s->CRC = AV_RL32(buf); buf += 4;
if(wc->mkv_mode)